Washington Plum. Journal of the American Pomological Society, [S. l.], v. 22, n. 3, p. 45–45, 1968. DOI: 10.71318/apom.1968.22.3.45a. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/932. Acesso em: 14 dec. 2025.